A Facile Synthesis of Highly Nitrogen-Doped Carbon Dots for Imaging and Detection in Biological Samples

Figure 3

(a) FT-IR spectra of N-doped CDs. (b) XPS survey spectrum of N-doped CDs and high-resolution spectra of C1s (c), N1s (d), and O1s (e). (f) XRD pattern of N-doped CDs.

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